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January 11th 2006 at 5:08 pm in MIT has an article on Spinning black holes leaving dents in space-time.
Similarities seen nine years apart imply something very fundamental is producing a pair of observed frequencies, namely the warping of space and time predicted by Einstein but rarely seen in such detail.
(…)
“The fact that we found the exact same frequency of X-ray oscillations nine years later is likely no coincidence,” said Homan. “The black hole is still singing the same tune. The oscillations are created by a groove hammered into space-time by the black hole. This phenomenon has been suspected for a while, but now we have strong evidence to support it.”
Interesting to see all those (initially theoretical) space-time mysteries being proved and unraffled, slowly but surely.
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